The RN1/8-121K-1% is a resistor network, consisting of eight individual resistors connected in parallel. It has an operating temperature range of -55°C to +125°C and a maximum power rating of 1W. It has a resistance value of 121K Ohms, with a tolerance of +/-1%. This product is made by Stackpole Electronics Inc., a global manufacturer of resistors, capacitors, and related components.